Medium severity · published Sep 4, 2019
CVE-2019-15718
In systemd 240, bus_open_system_watch_bind_with_description in shared/bus-util.c (as used by systemd-resolved to connect to the system D-Bus instance), calls sd_bus_set_trusted,…
4.4
CVSS
0.5%
EPSS
No
On KEV
Description
In systemd 240, bus_open_system_watch_bind_with_description in shared/bus-util.c (as used by systemd-resolved to connect to the system D-Bus instance), calls sd_bus_set_trusted, which disables access controls for incoming D-Bus messages. An unprivileged user can exploit this by executing D-Bus methods that should be restricted to privileged users, in order to change the system's DNS resolver settings.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
8.0 · source: NVD
EL
Enterprise Linux Eus · Redhat
8.1; 8.2; 8.4 · source: NVD
EL
Enterprise Linux For Ibm Z Systems 8 S390x · Redhat
All versions, or not specified · source: NVD
EL
Enterprise Linux For Ibm Z Systems Eus · Redhat
8.1; 8.2; 8.4 · source: NVD
EL
Enterprise Linux For Ibm Z Systems Eus S390x · Redhat
8.1; 8.2 · source: NVD
EL
Enterprise Linux For Power Little Endian · Redhat
8.0 · source: NVD
EL
Enterprise Linux For Power Little Endian Eus · Redhat
8.1; 8.2; 8.4 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
8.2; 8.4 · source: NVD
EL
Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions · Redhat
8.1; 8.2; 8.4 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
8.2; 8.4 · source: NVD
EL
Enterprise Linux Server Update Services For Sap Solutions · Redhat
8.1; 8.2; 8.4 · source: NVD
FE
Fedora · Fedoraproject
29; 30; 31 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-15718
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-15718
Exploit
http://www.openwall.com/lists/oss-security/2019/09/03/1
Issue Tracking
https://access.redhat.com/errata/RHSA-2019:3592
Issue Tracking
https://access.redhat.com/errata/RHSA-2019:3941
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1746057
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRE5IS24XTF5WNZGH2L7GSQJKARBOEGL/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HIKGKXZ5OEGOEYURHLJHEMFYNLEGAW5B/
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